<?php

/**
 * Field handler to provide a list of roles.
 */
class views_handler_field_upload_fid extends views_handler_field_prerender_list {

    function construct() {
        parent::construct();
    }

    function option_definition() {
        $options = parent::option_definition();
        $options['link_to_file'] = array('default' => FALSE);
        $options['only_listed'] = array('default' => FALSE);
        return $options;
    }

    function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);
        $form['link_to_file'] = array(
            '#title' => t('Link this field to download the file'),
            '#type' => 'checkbox',
            '#default_value' => !empty($this->options['link_to_file']),
        );

        $form['only_listed'] = array(
            '#title' => t('Only show "listed" file attachments'),
            '#type' => 'checkbox',
            '#default_value' => !empty($this->options['only_listed']),
        );
    }

    function pre_render($values) {
        $vids = array();
        $this->items = array();

        foreach ($values as $result) {
            $vids[] = $result->{$this->field_alias};
        }

        if ($vids) {
            // Support "only listed files" option.
            $where = '';
            if (!empty($this->options['only_listed'])) {
                $where = " AND u.list <> 0";
            }
            $result = db_query("SELECT u.vid, u.fid, f.filename, f.filepath, f.filesize, f.filemime, u.description FROM {upload} u LEFT JOIN {files} f ON f.fid = u.fid WHERE u.vid IN (" . implode(', ', $vids) . ")$where ORDER BY u.weight");
            while ($file = db_fetch_array($result)) {
                $file['filename'] = check_plain($file['filename']);
                $file['filemime'] = check_plain($file['filemime']);
                $file['description'] = check_plain($file['description']);
                $file['filesize'] = format_size($file['filesize']);
                $file['filepath'] = file_create_url($file['filepath']);
                if (!empty($this->options['link_to_file'])) {
                    $file['make_link'] = TRUE;
                    $file['path'] = $file['filepath'];
                }
                $this->items[$file['vid']][$file['fid']] = $file;
            }
        }
    }

    function render_item($count, $item) {
        return $item['description'];
    }

    function document_self_tokens(&$tokens) {
        $tokens['[' . $this->options['id'] . '-fid' . ']'] = t('The file ID for the file.');
        $tokens['[' . $this->options['id'] . '-name' . ']'] = t('The name of the attached file.');
        $tokens['[' . $this->options['id'] . '-type' . ']'] = t('The MIME type of the attached file.');
        $tokens['[' . $this->options['id'] . '-description' . ']'] = t('The name of the attached file.');
        $tokens['[' . $this->options['id'] . '-path' . ']'] = t('The path of the attached file.');
        $tokens['[' . $this->options['id'] . '-url' . ']'] = t('The url of the attached file.');
        $tokens['[' . $this->options['id'] . '-size' . ']'] = t('The size of the attached file.');
    }

    function add_self_tokens(&$tokens, $item) {
        $tokens['[' . $this->options['id'] . '-fid' . ']'] = $item['fid'];
        $tokens['[' . $this->options['id'] . '-name' . ']'] = $item['filename'];
        $tokens['[' . $this->options['id'] . '-type' . ']'] = $item['filemime'];
        $tokens['[' . $this->options['id'] . '-description' . ']'] = $item['description'];
        $tokens['[' . $this->options['id'] . '-path' . ']'] = $item['filepath'];
        $tokens['[' . $this->options['id'] . '-url' . ']'] = url($item['filepath']);
        $tokens['[' . $this->options['id'] . '-size' . ']'] = $item['filesize'];
    }

}
